Rubbing apkon for carding machines



Jan. 16, 1923. 1,442,767.

T. H. HUNTER ET AL.

RUBBI'NG APRON FOR GARDING MACHINES.

' FILED NOV- 26; I92! 1 2 Vim/T0128 Patented Jan. 16, 1923.

UNITED STATES PATENT OFFICE.

THOMAS H. HUNTER AND GEORGE W. HUNTER, OF PHILADELPHIA. PENNSYLVANIA.

BUBBING APRON FOR CARDING MACHINES.

Application filed November 26, 1921. Serial No. 517,961.

lie it known that we. 'l nonms ll. llnnrnn and (isonon l'lnx'rnn. ritizens of the United States. residing at lhiladelpliia. in the County of Philadelphia and State of Pennsylvania. have invented new and useful Tmprovernents in a. Rubbing Apron for (lei-ding lilarhines. of which the following is a specification.

Our invention relates to new and useful improvements in a rubbin; apron For carding machines. and has for its objet-t to provide a longitudinallv grooved belt oi soft rubber having a barking of ranvas attired to the inner SillfillP thereof to prevent undue stretching; of the apron whivh will be free of all seams so that the notion of the apron is always the same no matter what portion is in contact with the goods.

A. further objeet of our invention is to provide guide buttons suitably attached to an apron adjacent its edges and. disposed upon the inner surface thereof to guide or cause the apron to travel true upon the rolls and prevent the accidental displacement of the apron.

\Vith these ends in view. this invention eonsists in the details of eonstruction and eombination of elements hereinafter set forth and then specifically designated by the claim.

In order that those skilled in the art to which this invention appertains. may understand how to "make and use the same, we will describe its construction in detail. refer-ring bv numerals to the accompanying drawing forming a part of this applir-ntion. in which Fig. 1, is a plan or fans view of a rubbing apron embodyinn our invention.

Fig. 2. is an edge view thereof sbmving it upon two rolls.

Fig. 3. is a transverse seetional View at about the line 3-3 of Fig. 2.

Fig. 4.. is an enlarged fragmentary sertional view of the apron in the region of one of the guide buttons.

Fig. 5, is an enlarged fragmentary plan View having a portion broken away to rlearly illustrate the relation of the buttons to the machine rolls.

in (-arrying out our invention as here embodied. 2 represents the rubbing apron which is molded in the form of a belt from soft rubber to form a faring i huvinir u ranvas banking 4 affixed to the inner surface of the facing element to prevent undue stretching of the apron and the outer surface of the rubber faring element 3 is grooved longitudinally as indieated at 5 which grooves serve to talre hold upon the material be ng. carded so as to more eii'eetuallv roll said material during the rubbing operation.

Adjaeent ear-h edge of the apron and in spaced relation are lot-atoll the guide buttons 6 of semi-hard rubber whirl] buttons may be oi any desirable eontig'uration but are preferably oi dise form as here shown. These buttons are disposed upon the inner surfaee of the apron and are held in any suitable manner but we have found that a eonvenient means for attaching said buttons is a rivet 7 having. a large head 8 which is embedded in the rubber facing element 3 during the time the end of the shank is being set up and the head of this rivet must be drawn below the surface of the facing element as shown in Fig. 4- to prevent content of the heads of the rivets on one apron with those on another or with the goods being carded and if found desirable a washer 9 may be disposed between the button and the set up portion of the rivet.

The buttons projecting: from the inner surface of the apron will engage the rolls of the maehinr. herein designated by the muneral I so as: to reuse said apron to travel true upon said rolls an prevent areidental sidewise displareineut th reof and us the faring element has a rontinuous surfer-e un' broken by transverse j ints the action upon the material beine; earded is much superior to that of aprons having seams so that mueh better strands are produced.

Of course we do not wish to be limited to the exact details of construction as herein shown as these may be varied within the limits of the appended claim without departing Hevlng from the spirit of our invention.

thus fully described our invention,

what we claim as new and useful is:

The combination with a rubbing apron, or

5 oircular diselike rubber spaced apart around the inside of the both edges thereof with one apron adjacent of their flat faces guide buttons of semi-hard lying against the inner surface of said apron and a single rivet passing through the center of the button and said apron.

In testimony whereof, we have hereunto affixed our signatures.

THQMAS H. HUN ER. GEORGE W. HUN ER. 

